Active clinical trials for "Cerebrovascular Disorders"

Two groups of subjects will be constitute: (i) patients with circumscribed brain injury (including stroke, vascular malformations, tumor or circumscribed infectious lesions) or degenerative disorders and selective cognitive disorders; (ii) healthy control subjects. The objective of this project is to evaluate specific neuropsychological deficits and apply current brain imaging techniques (anatomical, diffusion, functional) to patients suffering from these cognitive deficits due to brain damage, in order to elucidate the brain mechanisms underlying these deficits.

To study, prospectively, the association between dietary patterns and risk of health outcomes (cardiovascular, metabolic, endocrine, neurological, skeletal muscular, cancer) in cohort study of 116,671 women age 24 to 44 years at baseline in 1989 (the Nurses' Health Study II; NHS II).

Physical activity is defined by any movement produced by the skeletal muscles responsible for an increase in energy expenditure. The Stroke Council of the American Heart Association (AHA) recommends, in prevention after the occurrence of a first stroke, the practice of moderate to intense physical activity for 40 minutes a day, three to four times a week (Lackland et al., 2014). The World Health Organization (WHO) also recommends the practice of at least 150 minutes of moderate-intensity endurance activity or at least 75 minutes of endurance activity of sustained intensity per week, adapted to the possibilities of the patient (World Health Organization 2010). Unfortunately, the majority of stroke patients have activity below recommendation (Rand et al., 2009). The main hypothesis of this work is that the amount of AP, measured by self-questionnaire, is insufficient, and below current recommendations in patients with stroke, after return home. Given the multiple physical, psychological, social, and economic benefits of PA practice, it is also important to identify the habits and challenges that patients experience with PA, so that they can be better informed. advise and guide them to reach AP stroke recommendations.

This study is designed to allow researchers to use transelectrical stimulation to explore the function of the human nervous system and improve diagnosis of neurological disorders. Transcranial electrical stimulation is a non-invasive technique that can be used to stimulate brain activity and gather information about brain function. Electrical stimulation involves placing electrodes on the scalp or skin and passing an electrical current between them. When this is done, an electrical field is created that activates areas of the brain that control muscles. Muscle activity as a result of the stimulation can be recorded and analyzed.

This study aims to determine the extent to which pre-existing long-term conditions are associated with survival following a heart attack (acute myocardial infarction) using observational data from the UK's national heart attack register.

This study compares the accuracy of fusion imaging (Fusion Roadmap) versus real-time X-ray imaging (Roadmap) during catheterization of supra-aortic trunks of in patients with aneurysms or arteriovenous malformations.

To evaluate the relation of retinal microvascular characteristics to subclinical cardiovascular disease, clinical disease, and their risk factors in the Multi-Ethnic Study of Atherosclerosis (MESA) cohort.

The main objectives of the proposed project are: To provide essential data on acute stroke management (quality indicators) incorporating hard clinical outcomes that will contribute to an ongoing process of quality improvement To develop an interactive multichannel platform, for collecting, cleansing and curating high quality in-hospital and follow up data, applying multidimensional quality assessment analysis, providing statistical and analytic reports, monitoring behavioral changes and supporting overall project's management. To evaluate patients' and physicians' experiences and their impact on stroke management. To assess severe negative impact of stroke on the life of survivors including quality of life and disability To measure health related and non- health (loss of productivity, informal care) related national expenditure for stroke care using a bottom up approach To evaluate the value of care focusing on health outcomes compared with total costs of achieving them

This study will determine the risk of brain aneurysm (abnormal outpouching of a brain artery) in young adults who had their carotid artery tied off as an infant as part of the extracorporeal membrane oxygenation (ECMO) procedure. This procedure is sometimes performed on newborns with lung problems so that they can have oxygen brought to their blood outside the body. ECMO operates similar to a heart-lung machine. Blood drained from the veins has the carbon dioxide removed and oxygen added. The oxygenated blood is then returned to the body through the arteries. People 18 to 25 years of age who underwent ECMO as an infant at the Children's National Medical Center in Washington, D.C., may be eligible for this study. Participants undergo the following procedures: Medical history and physical and neurological examinations. Magnetic resonance imaging (MRI) of the head and neck. MRI uses a strong magnetic field and radio waves to obtain images of body organs and tissues. The subject lies in the scanner (a metal cylinder surrounded by a magnetic field) for about 90 minutes, lying still for up to 15 minutes at a time. During part of the procedure, a contrast dye is injected into a vein through a catheter (thin plastic tube) to enhance the images.

Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal processes of the brain (central nervous system) of normal individuals and patients with neurologic illnesses without physical / structural damage to the brain. When a region of the brain is active, it uses more fuel in the form of oxygen and sugar (glucose). As the brain uses more fuel it produces more waste products, carbon dioxide and water. Blood carries fuel to the brain and waste products away from the brain. As brain activity increases blood flow to and from the area of activity increases also. Knowing these facts, researchers can use radioactive water (H215O) and PET scans to observe what areas of the brain are receiving more blood flow. This study is designed to use positron emission tomography (PET) with radioactive water (H215O) to determine the areas of the brain associated with memory and language. Patients participating in the study will be made up of normal volunteers, patients with epilepsy, and patients with other abnormalities related to the surface of the brain (non-epileptic focal cortical dysfunctions).